Apparatus for straining water and the like.



M. v. ROBERTS. APPARATUS POR STBAINING\,WATEB AND THE LIKE.

.APPLIUATION :FILED` JUNE Z9, 1908.

913,768. -Rawen'fm Mar. 2; 1909.

9 SHEETS-BHEBT l.

M. V. ROBERTS. APPARATUS FOR STIAIEING WATER AND- THE LIKE. APPLICATION 'E ILBIQAJUNB 29, 190s.

91 3,763, Patented Mar. 2, 1909. 'Av 9 SHEETS-SHEET 2.

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Pateted Mar. 2, 1909 @SHEETS-SHEET 3 Inventor. 72% /Zfw 11OlJ M. V. ROBERTS.

APPARATUS FOR STRAINING WATER AND THB LIKE.

APPLICATION FILED JUNE 29, 1908.

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M. V. ROBERTS. APPARATUS POB. STRAINING WATER AND THE LIKE.

APPLICATION FILED .TUNE 29, 1908.

Patented Mar. 2.1909.

9 SHEETS-SHEET 4.

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M. v. ROBERTS. APPARATUS FOR STRAINING WATER AND THB LIKE.

v APPLICATION FILED JUNE 29, 1908.

9 1 3,768 Patented Mar. 2, 1909.

9 SHEETS-SHEET 5.

M. V. ROBERTS.

APPARATUS FOR STRAINING WATER AND THE LIKE. APPLIGATION 'FILED JUNE zo, 190e.

`913,768. Patented Mar. 2, 1909.

F1910, FL9.11.

W'Ltneses. Inven/or. WWW/" f ZW- M. V. ROBERTS. APPARATUS 170BI- STRAINING WTER AND TBB LIKE. APPLIOATloN FILED JUNI; 29, 190B.

91 f, Patented Mar. 2, 1909.

9 SHEETS-SHEET 7.

Q CD SFT n La M. V. ROBERTS. v APPARATUS FOR STRAINING WATER AND THB LIKE.

APPLIOATION PIL'BD JUNE 29, 190e.

913,768. Patented Mar. 2, 1909.

9 SHEETS-SHEET 8.

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M. V. ROBERTS. APPARATUS POR STRAINING WTER AND THE LIKE. APPLICATION FILED JUNE zo, 1908.

913,758. Patented Mar. 2, 1909.

9 SHEETS-SHEET D.

.kiii@ PATENT FFCF.

MARTIN VALENTINE ROBERTS, OF EPSOM, ENGLAND'.

APPARATUS FOR STBAINING 'WATER AND THE Specification of Letters' Patent. Application iefl .Tune 29, 1908.

To all 'whom it 'may concern.'

Be it known that i, MARTIN VALENTINE Rifinna'rs, a suhject oi' His Majesty the King of Great Britain, residing al Epsom, in the county et Surrey, Engiand, have invented a y certain new and usci'ui improved Apparatus the following is a speciiicalion.

This invention reiatrs to an improved ap la paratus for straining water and the like for use with steam condcnsers, or for other purposes.

The water used i'or condensing steam from steainengines, ste-ain turbines and for other purposes when taken i'roin a lake, river canal,

tirdrain, i'reduent ly contains more or less inateriai such as weeds, l es, straw, pieces of cioth, hair, tin-inps, ver *fihic refuse, wood and other matter which ii not arrested 2o blocks the ooniicnscr tuhcs. iiitherto a fixed grid placed in the ini aire passage hetwccn the lake, river or the like, and the station has been used to strain the w' er before use, but disadvantages at tend the use of such a grid, for instance, the diilicuity oi removing the accumulation from the lake or river side of the grid, the space the grid occupies and others'.

'The invention consists of an in'iprovcd apparatus ci" the st\.li"cicaniiiv type which is automatic in its action in which the deposit of. foreign matter left hy strainer is washed oi' sul.,fcquently hy the return flow, that is the water ai'tcr it has heen istil-ized is used for cleaning the strainer and carrying the accumulation hack into the lake, river or other source of supply, lor example when the water used 'or a steam condenser the strainer removes ail susponderi material from the acid' water heiorc the latter enters 10, the condenser and this material is removed frein the strainer hy the heated water from l' or. its way hack by the dise source of supply.

2 s apniicahlc in 'the cases sa if. sircd to uiinnce the head of Y. #fion pipe hy the head oi' water .in th.

pipe, as in the case of i' troni a hike, river or the g ou what i: known as the circ water or it lo tno nini 2 o1 tin disc the iiquid on the' 1 l to such inlet from whence it goes to t 1- ncariy i denser or the like. The straiiieiv-'is then LIKE Patented March 2, 190e. Serial N0. 440,999.

balances the weight ol the'intake. Accord, ing to saine the strainer grids are arranged to rcciprocate either continuously or periodically as the s traincrs become `foul, and for this purpose one or more are combined with l a piston or pistons and are oauscdlto move for Straining vater and the Like, ol' which' in a casing or cylinder to present themselves respectively to inlet and outlet passages.

Sonic forms of apparatus according to the in 'ention are shown in the accompanying di iwings in whichr- Figure 1 is a front view of a suitable general forni of `ap ai'atus partly in section having three cylin( ers with one strainer in each. Fig. Q is a side elevation also partly in section. Fig. 3 is a perspective View of a form of strainer on an enlarged scale. Fig. 4 is a diagrammatic View showing a similar arrangement oi straincrs as in Fig. 1 hut with a modiiied driving gear. Fig. 5 is a diagrammatic view of Fig` L1 taken at a right angle to it. showing the general arrangement of a three line apparatus as shown in Figs. 1 and 2 and in part in Figs. 4 and 5 in connection with a condenser and pump. Fie'. 5b isa plan of saine. Fig. (3 is a sectional elevation of two connected cylinders eachq having two strainers. Fig. 7 is a sectional plan of Fig. 6 on line X X. Figs. to 11 are diagrammatic ,views representing different positions of the strainers of Figs. 6 and 7. Figs. 12 to 14 are diagrammatic views of a cylinder having two strainers, each one ofwliich is inde endently reciprocatml, the three views showing difierent positions of the strainers. Fig. 15 is a diagrammatic section of any of Figs.- 12, 13 or 14 through one ofthe strainers and inlet and outlet. Fig. 16 isch-elevation of a further arrangement of two cylinders each having a single st noction which are partly removed. lig. 17 is a plan of same.` Figs. 18 to 21 are diagrammatic views of a cylinder having four strainers, the four views showing different' positions of the strainers.

In these drawings like iigures of reference re resent like parts throughout.

t will bc understood that in all forms of the invention hereinafter described, a strainer' is p 'esentcd to an inlet opening from the river or the like, tli'ewater is drawn through it leaving the-foreign mattei' therein l l or thereon, and passes to an outlet opposite ainor with their pipe con-y 2 will be re erred to as the strainen cleared or cleansed by an upward or downward lateral or other movement which may place it in front of an inlet receivingthe used Water from the condenser or the like Which water passes through it in the reverse direction and then `to an outlet from whence it passes to the discharge pipe. The parts are preferably duplicated to insure a continuous ow of Water and except in Figs. 8 to 21 so arranged that as the ports of one are gradually opened to pass water, the ports in the other are gradually closed.

In Figs. 1 and 2 each of the three cylinders or chambers contains a piston which carries a strainerbut inasmuch as a ortion r portions ofthe piston is required oth in theA above 'and in the various forms hereinafter described for inte osing before or between the inlets and out ets of the cylinders to form a valve or valves, the valve portion' is marked 1 and will be hereinafterreferred to as the iston While the strainer portion 'A The combined iston and strainer are in this case operated t rough iston rods HL and connecting vlinks 15b y a three throw crank shaft 15 which is a convenient motion for the purpose While the strainer 2 which may be formed asl a cage with an opening on one side, is in this form made with a rounded back and a Wide oblong openin as shown in Fig. 3 as this construction enab es the hei ht to be reduced in comparison with a circu ar one, thus lessenin the throw of the crank, the cage or basket orm being suitable for enabling foreign bodies'left inside to be carried g or down n the reciprocatin movement. ach c linder is rovided Wit an inlet 3 and out et 3 for t e intake Water and an inlet 4 and outlet 4a for the discharge Water. In this construction the cylinders are closed and the piston rods 15a are acked by suitable glands such as-16 in or er that 'the ap-A aratus may be mplo ed in a closed circuating system. In ad ition if desired water may be kept supplied to a receptacle 16 y around the piston rod, leakage being compensatedfor from a tank 16b supplied from a ball cock,I which tank supplies the receptacle by pipes 16. For Ythe purpose of slicing up or breaking bodies which 'are too large to go into the strainer ca e the pistons 1 may be provided with knife e ges 5 which coperate with knife edges 6 on the inlet and outlet openings on the upward and downward movement of the piston.v The three cylinders are open to each other at the top and bottom at 11 and 1la for equalizing purposes, oi' so that the contained water may pass from one to the other as the moving .Y parts ascend. and descend.

` it is desirabie 'llie arrangement shown may be termed a three line i rpparatus and is preferred, where to reduce 'the height, to the two line forni next hereinafter described consisting of two cylinders Veach containing two strainers and three pistons. Where it is still further desired to reduce the height other forms of drivin gear may be employed, one being indicateA in Figs. 4 and 5 which are diagrams showing the operation of the three linelk type of Figs. 1 and 2 and which consists of a slotted crosshead 7 to which the piston rod 7a is attached the slot of the crosshead' carryin the pin of acrank 8, the rotation of whic will give the usual reciprocating motion to the crosshead 7 and piston rod 7a without the intervention of the connecting rod shown in Figs. 1 and 2. In the case shown in Figs. 4 and 5 the cranks are all shown as being driven by Wormwheels 9 from a suitably y of worm wlieels 9.

The operation of the 'apparatus shown in Figs. 1 and 2 is indicated in these diagrams Figs. 4 and 5 from which it will be seen that (referring to Fig. 4) the disehargeio enings 4--4a of the two right-hand cylin ers are each half op'en to the strainers 2, 2 While the, intake 3--3a of the left-hand cylinder is fully rotated shaft 10 through the intervention open, the .positionsbeing changed with the movement'of -the parts but always permitting E of practically ,the same amount of strainer surface being exposed for the intake to strain the water and tothe discharge/to remove refuse from the `inside of the strainer,` either through one strainer or through two more or less fully open. In Fig. 1 the two outer cylinders have their strainers each half open to the discharge While the` center,

strainer is fully open to the intake; It Dwill be understood that all the inlet openings?,

are preferably connected to 'one general intake passage-70 Figs. 5a, 5b, and all the outlet openings 4a to one general discharge pas-.

sage 7 1 by any suitable means. That shown consists of unionv connecting ieees 70a 71a respectively. On the othersit e of the apparatus all the openings 3 communicate with a union piece 72 and all the openings 4 with a union piece 73 each union communicating .through pipes 72a, 73a respectively with the pump 74 and condenser 75. as requirements determine are inserted in the pi es. y

n Figs. 6 yand 7 and the i'liagi'ams Figs.` 8 to 11 there are two cylinders forming two lines having equalizing pipes 21, 21, (equivalent to tlie Apassages '11, lla'of 'the preceding figures) for the wafer displaced by the moving parts, connecting such cylinders Suitable valves iis .ful/d20 i at the top and bottoni, and there are two iulets 23, 23 connected to an intake. pipe and av single center outlet 24 connecte( to a discharge on one side of each cylinder, there beingr corresponding outlets 223" 23 and an inlet 24 on the o i )osito or condenser side. of

eaeli, which wil to that apparatus for suppl-ying it with water and receiving its i'etiiriiflow. In each cyl' e connected respectively inder are two strainers 22, 22 and three pistons 31, 31, 31, the arrangement shown in Fig. 6 corresponding to the diagram 1F ig. 8 from which it will he seen that the lett hand cylinder has two strainers 22 fully exposed Qto an intake inlet 23, and a discharge outlet 24 respectively, the' other cylinder beingt closed. The other diagrams Figs. 9 to 11 show varia-tions of these positions.

Figs. 12 .to 14 show diagramniatically dilifelent positions of a single line apparatus being a cylinder having two strainers di? and two pistons A11, 1out these are separated as Shown, each piston `and its strainer having its own .piston rods 50,. 50, which are separately reciprocateil. the cylinder also having twoinlets 83, fconnected to anintake and a single center. outlet 3K1 connected to a discharge 'on one side and corresponding outlets 33a, Si and an jinlet 34 on the opposite or condenser side ol each, connected respectively hy pipes to that apparatus. Fig. is a sec-tion of `any one of these diagrams through one of the strainers and inlet and outlet. In this case the motion is intermittent and as will be seen by Fig. 13 the outlet 34 to the disch-arge has at times no strainer opposite to it to cleanse when there are two inlets 33, 33 open to the intake. In thisv arrangement only one line of strainer-s is required for a continuous service.

In Figs. 16 and 17 an apparatus is shown consisting of two cylinders having each one strainer 52 and two pistons 51, 51, with 35 their piston rods 57. 'lhelower piston in eachfcase has a through way 51a. 'lhe inlets 43, 43 to the intake are in parallel so that thestream ironrthe intake trunk or pipe 60 may pass through either cylinder` to 4er the' outlets 43 depending upon which cylinder has its strainer 52`opposite to an inlet o ening. ln Fig. 16 this is the left hand one t e other being closed by the piston 51. The outlet is in series, that is, all the returning discharge Water from the pipe 59 passes into the opening 44 oi the left hand cylinder through the passage 51a oi the piston through the outlet 44"' then through a connecting pipe 58, the opening 44 of the other cy inder, through the reverse Wa f of the strainer52 in this cylinder, and to t e outlet 44 so that such strainer may be cleansed. The intermittent motion given to the moving parts then reverses their positions, the intake water 'passing` through the strainer of the right hand cylinder which has been moved to its raised position while the discharge 'passes through the strainer of the left hand cylinder which has been moved to its lower f-position. Y' Figs. 18 to 21 show a single line apparatus -With a continuous motion. In this case there are four strainers 62, 62, 62, 62, in each cylinder 4separated only by Walls or dia- 65 phragms 56 with pistons 61 at each end, the

upper and lower ends of the cylinders being connected by an equalizing pipe 71 -lor any water moved hy the parts. 1iach cylinder has further on one side an inlet 53 and two outlets 54, and on the other'an outlet 53u for the intake and two inlets 54, 54, for the discharge. The position oi the parts shown in l1` ig. 18 does not make any lliilorcncc in eil'ect (except that dillerent strainers'arc in operation) over that shown in l? ig.' 19 where the piston has moved down the space of one strainer but with a further and similar movement as shown in Fig. 2() a piston 61 has closed the upper passage 'from 54 to 541 of the discharge and the lov.` st passage 541 to 54 also to the discharge., has been opened in place thereof. The central passage 53 to 53nl always rcmains'open.through a strainer.

lt will he seen that all the 'forms of apparatos are simple and that the mixing oi the water is guarded against and that owing to the reciprocating movement and the fact that the strainers are in'basket or like form they only have to be elevated or lowered or otherwise moved to place the refuse or for-- eign matter in :front oi the point where they will be washed out.

Several forms of apparatus have been shown vbut it should he understood that otheryariations are possible and may be convenient. For instance the chambers may he in other forms than cylinders and the strainers he receptacles of other shape than that shown.

1. ln apparatus for straining, a strainer, and means for reciprocating same to place it alternately in the intake and discharge of a circulatingsystem.

2. ln apparatus 'for straining, a strainer yol" basket form, adapted to catch refuscin the inward flow of a circulating system and to carry such refuse in its movement in iront of the outward flow of said system, to release same and moans for reciprocating such strainer to ohtainsaid movement:

3. In apparatus i'or straining, a strainen. a piston forming a valve, means for reci )rocating hoihoi same and a chamber in w ich said-strainer and valve work, such chamber having intake and discharffe openings, heforc which the strainer and va ve are alternately placed hy the movement imparted to them.-

4. In apparatus for straining, a series of strainers, a series of l)istons 'forming valves, alternating with said strainers, means for reciprocatirnr all of said strainers and valves, and a cham er in which said strainers and valves work, such chamber having a series oi intake and discharge openings before which the strainers and valves are -alternately placed by the movement imparted to them.

5. ln apparatus for straining, a strainer, a piston forming a valve, moans for reciproeating both of same, and aclosed eylinderin Which' said strainer and valve Work, such cylinder having intake and discharge openings before which the strainer and valve are alternately placed by the movement imparted to thein i 6. In apparatus for straining, a strainer, a piston forming a valve, means for reciprocating both of same, a cutting edge carried by said valve, a chamber `for s aid piston and valve, having intake and discharge openings and a cutting edve yon the chamber adapted to co-act With the edge on the valve to cut up refuse.

7. In apparatus for straining, a chamber having a plurality of corresponding inlet and outlet openings, one of each in conjunction, being adapted to pass a body of liquid directly through suchchamber, a piston in said chamber, a strainer forming part ofsaid piston, and' means for reciprocating said piston, to place the piston portion and the strainer portion alternately between each of ,such corresponding openings.

8. In apparatus for straining, a cylinder having a plurality of corresponding inlet and outlet openings, one of each in conjunction, being adapted to pass a body of liquid directly through such cylinder7 a piston in said cylinder, 'a basket shaped strainer carslsf/es a reciprocating strainer therein, a piston rod for operating said strainer, a receptacle around said piston rod and a Water supply connected thereto for sealing said piston rod. 10. In apparatus for straining, three cylinders, each having a plurality of inlet and 'outlet openings, adapted to pass bodies of liquid directly through such cylinders, a

piston and a strainer in each member, andl means for reciprocating each piston and strainer to so position them in front of the openings .that the saine amount of strainer surface is exposed to the intake to strain,

and to the discharge to remove refuse from the other face of the strainer.

In testimony vsrhereoic I have hereunto set `my hand in the presence of two subscribing Witnesses.

MARTIN VALENTINE ROBERTS.

Witnesses ERNEST PARKER, ETHEL M. WEBB. 

